I have website in which I need to display the frequency of the Live Mic Audio.
I have a this code, but its extremely difficult to understand (It uses Fourier Transform and all).
On some research I got to know of getByteFrequencyData() which returns the frequency of the audio. Has anyone used it before with Live Mic Audio preferably in Web Audio API?
"Displaying the frequency" can mean many things. Actually, my PitchDetect demo DOESN'T use a Fourier Transform - it uses autocorrelation. But that will only give you a single pitch, at high accuracy. If your signal has multiple simultaneous notes - well, that's a hard problem.
If you want to see a frequency analysis breakdown of the live mic input, check out http://webaudiodemos.appspot.com/AudioRecorder/index.html (code at https://github.com/cwilso/AudioRecorder). That uses the built-in FFT in the RealtimeAnalyser to show a frequency spectrum graph of a live audio signal.